Alert archive / Texas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 9, NWS Fort Worth, TX

February 18, 1991Bell County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Feb 18, 1991, 9:27 PM CST for Bell County, Texas. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Feb 18, 1991, 9:27 PM CST (03:27 UTC)
Expired
Feb 18, 1991, 10:30 PM CST
In force
63 min
Issued by
NWS Fort Worth, TX
Area
Whole counties

County Bell County, TX

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 00:00Z, 3.5 hours before the alert went out and 309 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Longview/Gregg, TX at 00:00Z on 1991-02-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 766 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 00:00Z on 1991-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
766 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
268 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 18, 6:59 PM CSTSevere Thunderstorm WarningFWDHopkins61 min
Feb 18, 6:59 PM CSTSevere Thunderstorm WarningFWDHunt46 min
Feb 18, 8:06 PM CSTSevere Thunderstorm WarningFWDFranklin39 min
Feb 18, 8:24 PM CSTSevere Thunderstorm WarningFWDMorris66 min
Feb 18, 10:30 PM CSTSevere Thunderstorm WarningFWDHenderson, Navarro60 min
Feb 18, 11:24 PM CSTSevere Thunderstorm WarningFWDSmith66 min
Feb 19, 12:02 AM CSTSevere Thunderstorm WarningFWDMorris, Upshur58 min

Nearby

Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.